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quantity limitations imposed by previous mining at New Horizon #2 Mine. The slope varies from <br />shallower than 3H:1 V to 5H:1 V, with a few exceptions, which is very good for the post mine land <br />use of dryland <br />Mining at New Horizon #2 is a standard strip pit operation. Initial topsoil is stripped and salvaged <br />for reclamation, upperoverburden is removed by mobile equipment, lower overburden is drilled and <br />blasted, and then overburden is removed from above the coal seam and placed behind the pit into <br />the void of the previous mining area. This process can be seen in Map 2.05.3 -1 in Section 2.05.3. <br />This is a highly efficient process for both mining and reclamation, as it reduces the need to <br />transport large amounts of overburden to and from any storage piles as well as minimize the <br />amount of previous pit that is not backfilled. <br />The coal seam at New Horizon #2 Mine is at a relatively consistent depth from the surface, but the <br />length of the each pit can vary significantly. This becomes more pronounced as the mine reaches <br />its current western extent. As can be seen on Map 2.05.4 -1 -2, the pit length (north to south) will <br />reduce from over 1400' to 750'. This means that there will be less overburden created by new <br />mining than there is void space in previous mining strips. In order to make up for some of the <br />discrepancy, and to insure that lands not owned by Western Fuels are returned to approximate <br />original contour, material will be hauled from active mining areas to mined out areas that need <br />additional backfill. Attachment 2.05.4(2)(c) -7 shows the sequence of mining and hauling that will <br />be used to re- establish the new topography on Morgan, Lloyd and Benson properties. <br />The lands owned by Lloyd, Benson, and Morgan will all be returned to approximate contour, with <br />a similar drainage pattern to the pre -mine conditions. In areas of minor topographic change, the <br />land has been improved by having a more consistent slope over broad areas, which will facilitate <br />irrigation of fields. <br />The WFC parcel has a modified topographywith the following properties (determined using Carlson <br />CAD software): <br />(Revised June 2010) 2.05.4(2)(c) -6 <br />